Twist drill



FIG. 1 is a front elevation view of a twist drill showing my new design;

FIG. 2 is a back elevation view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is an enlarged bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines in the drawings depict portions of the twist drillwhich form no part of the claimed design.

CLAIM The ornamental design for a twist drill, as shown and described.